MacRumorsis reporting that MacBook Pro supplies have become constrained…

MacRumors has heard that the MacBook Pro supplies to retailers have abruptly become constrained, possibly suggesting that updates could be imminent.

…and that Steve Jobs has replied to someone who asked about MacBook Pro delivery dates:

“I recognise the need for secrecy etc but I am really losing heart in the lack of vision for the MBP and Mac Pros. Not expecting a response but as someone who has personally switched dozens of people onto the mac way this is a sad email for me to compose.”